kubevirt Packer image for google cloud compute

README.md

• packer needs a patch pending from this pr
• put the files except the json one in a kubevirt-button directory
• edit packer-kubevirt-button.json to properly set the path of your account_file. You can optionally change things like
  • cpu and memory of the image with the machine_type
  • network_ip depending on which region you'll want the resulting images to launch in
• create the image with the following command

packer build packer-kubevirt-button.json

then you can deploy an instance making sure you

• name it kubevirt
• force the primary private ip to 10.132.15.253
• use the zone europe-west1-b ( to have the ip from the correct subnet)

to make the image available publicly, we need to store it in google cloud storage

PROJECT="kubevirt-button"
IMAGE="kubevirt-button"
VERSION="v0.5.0"
BUCKET="kubevirt"
gcloud compute images export --destination-uri gs://$BUCKET/$VERSION.tar.gz --image $IMAGE  --project $PROJECT

kube-flannel-rbac.yml

# Create the clusterrole and clusterrolebinding:
# $ kubectl create -f kube-flannel-rbac.yml
# Create the pod using the same namespace used by the flannel serviceaccount:
# $ kubectl create --namespace kube-system -f kube-flannel.yml
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: flannel
rules:
  - apiGroups:
      - ""
    resources:
      - pods
    verbs:
      - get
  - apiGroups:
      - ""
    resources:
      - nodes
    verbs:
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - nodes/status
    verbs:
      - patch
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: flannel
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: flannel
subjects:
- kind: ServiceAccount
  name: flannel
  namespace: kube-system

kube-flannel.yml

---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: flannel
  namespace: kube-system
---
kind: ConfigMap
apiVersion: v1
metadata:
  name: kube-flannel-cfg
  namespace: kube-system
  labels:
    tier: node
    app: flannel
data:
  cni-conf.json: |
    {
      "name": "cbr0",
      "type": "flannel",
      "delegate": {
        "isDefaultGateway": true
      }
    }
  net-conf.json: |
    {
      "Network": "10.244.0.0/16",
      "Backend": {
        "Type": "vxlan"
      }
    }
---
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
  name: kube-flannel-ds
  namespace: kube-system
  labels:
    tier: node
    app: flannel
spec:
  template:
    metadata:
      labels:
        tier: node
        app: flannel
    spec:
      hostNetwork: true
      nodeSelector:
        beta.kubernetes.io/arch: amd64
      tolerations:
      - key: node-role.kubernetes.io/master
        operator: Exists
        effect: NoSchedule
      serviceAccountName: flannel
      containers:
      - name: kube-flannel
        image: quay.io/coreos/flannel:v0.7.1-amd64
        command: [ "/opt/bin/flanneld", "--ip-masq", "--kube-subnet-mgr" ]
        securityContext:
          privileged: true
        env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        volumeMounts:
        - name: run
          mountPath: /run
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      - name: install-cni
        image: quay.io/coreos/flannel:v0.7.1-amd64
        command: [ "/bin/sh", "-c", "set -e -x; cp -f /etc/kube-flannel/cni-conf.json /etc/cni/net.d/10-flannel.conf; while true; do sleep 3600; done" ]
        volumeMounts:
        - name: cni
          mountPath: /etc/cni/net.d
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      volumes:
        - name: run
          hostPath:
            path: /run
        - name: cni
          hostPath:
            path: /etc/cni/net.d
        - name: flannel-cfg
          configMap:
            name: kube-flannel-cfg

kubernetes.repo

[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0

nfs.yml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv001
spec:
  capacity:
    storage: 10Gi
  accessModes:
  - ReadWriteOnce
  nfs:
    path: /pv001
    server: kumaster
  persistentVolumeReclaimPolicy: Recycle

packer-kubevirt-button.json

{
  "builders": [
    {
      "type": "googlecompute",
      "account_file": "kubevirt-button-11642eb3792d.json",
      "project_id": "kubevirt-button",
      "source_image_family": "centos-7",
      "disk_size": 50,
      "image_description": "Kubevirt button",
      "image_name": "kubevirt-button",
      "instance_name": "kubevirt",
      "machine_type": "custom-2-8192",
      "network_ip": "10.132.15.253",
      "ssh_username": "centos",
      "zone": "europe-west1-b",
      "image_licenses": ["projects/vm-options/global/licenses/enable-vmx"]
    }
  ],
  "provisioners": [
    {
      "type": "file",
      "source": "kubevirt-button/deploy.sh",
      "destination": "/home/centos/deploy.sh"
    },
    {
      "type": "file",
      "source": "kubevirt-button/kubernetes.repo",
      "destination": "/home/centos/kubernetes.repo"
    },
    {
      "type": "file",
      "source": "kubevirt-button/kube-flannel-rbac.yml",
      "destination": "/home/centos/kube-flannel-rbac.yml"
    },
    {
      "type": "file",
      "source": "kubevirt-button/kube-flannel.yml",
      "destination": "/home/centos/kube-flannel.yml"
    },
    {
      "type": "file",
      "source": "kubevirt-button/kubernetes.repo",
      "destination": "/home/centos/kubernetes.repo"
    },
    {
      "type": "file",
      "source": "kubevirt-button/nfs.yml",
      "destination": "/home/centos/nfs.yml"
    },
    {
      "type": "file",
      "source": "kubevirt-button/vm.yml",
      "destination": "/home/centos/vm.yml"
    },
    {
      "type": "shell",
      "inline": "sudo sh /home/centos/deploy.sh"
    }
  ]
}

vm.yml

metadata:
  name: testvm-ephemeral
apiVersion: kubevirt.io/v1alpha1
kind: VirtualMachine
spec:
  domain:
    resources:
      requests:
        memory: 64M
    devices:
      disks:
      - name: registrydisk
        volumeName: registryvolume
        disk: {}
  volumes:
    - name: registryvolume
      registryDisk:
        image: kubevirt/alpine-registry-disk-demo:latest